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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c7452125fd0a52a9a4fdec1657310fc19fb1dfb9a32ded40eeb180a1fc979aff' 
  AND token = 'A+xoc1+7wAexmyX/opVYpkDE8G+FqAjg0GY0hMOKI1w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}